Gas cook top



FIG. 1 is a perspective view of a gas cook top according to an embodiment of our new ornamental design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a left side view thereof.

The broken lines represent environmental structure or unclaimed portions of the climbing aid and do not form a portion of the claimed design. 

CLAIM The ornamental design for a gas cook top, as shown and described. 